Implementation Guide
Page 3
... Security 16 Aggregated Links 16 Auto-negotiation 17 Multicast Filtering 18 Spanning Tree Protocol and Rapid Spanning Tree Protocol 18 Switch Database 19 Traffic Prioritization 19 RMON 20 Broadcast Storm Control 20 VLANs 20 Configuration Save and Restore 20 2 OPTIMIZING BANDWIDTH Port Features 23 Duplex 23 Flow Control 24 Auto-negotiation 24...
... Security 16 Aggregated Links 16 Auto-negotiation 17 Multicast Filtering 18 Spanning Tree Protocol and Rapid Spanning Tree Protocol 18 Switch Database 19 Traffic Prioritization 19 RMON 20 Broadcast Storm Control 20 VLANs 20 Configuration Save and Restore 20 2 OPTIMIZING BANDWIDTH Port Features 23 Duplex 23 Flow Control 24 Auto-negotiation 24...
Implementation Guide
Page 4
...Link Example 32 3 USING MULTICAST FILTERING What is an IP Multicast? 33 Benefits of Multicast 34 Multicast Filtering 34 Multicast Filtering and Your Switch 35 IGMP Multicast Filtering 36 4 USING RESILIENCE FEATURES Spanning Tree Protocol (STP) 39 Rapid Spanning Tree Protocol (RSTP) 40 What is ...to STP 45 STP Example 45 STP Configurations 46 Using STP on a Network with Multiple VLANs 48 5 USING THE SWITCH DATABASE What is the Switch Database? 49 How Switch Database Entries Get Added 49 Switch Database Entry States 50 6 USING TRAFFIC PRIORITIZATION What is Traffic Prioritization? 51 How Traffic ...
...Link Example 32 3 USING MULTICAST FILTERING What is an IP Multicast? 33 Benefits of Multicast 34 Multicast Filtering 34 Multicast Filtering and Your Switch 35 IGMP Multicast Filtering 36 4 USING RESILIENCE FEATURES Spanning Tree Protocol (STP) 39 Rapid Spanning Tree Protocol (RSTP) 40 What is ...to STP 45 STP Example 45 STP Configurations 46 Using STP on a Network with Multiple VLANs 48 5 USING THE SWITCH DATABASE What is the Switch Database? 49 How Switch Database Entries Get Added 49 Switch Database Entry States 50 6 USING TRAFFIC PRIORITIZATION What is Traffic Prioritization? 51 How Traffic ...
Implementation Guide
Page 5
... 62 Email Notification of Events 62 8 SETTING UP VIRTUAL LANS What are VLANs? 65 Benefits of VLANs 66 VLANs and Your Switch 67 The Default VLAN 67 Communication Between VLANs 67 Creating New VLANs 68 VLANs: Tagged and Untagged Membership 68 Placing a Port in a Single VLAN 69 VLAN Configuration Examples 70 Using Untagged Connections 70 Using 802.1Q Tagged Connections...
... 62 Email Notification of Events 62 8 SETTING UP VIRTUAL LANS What are VLANs? 65 Benefits of VLANs 66 VLANs and Your Switch 67 The Default VLAN 67 Communication Between VLANs 67 Creating New VLANs 68 VLANs: Tagged and Untagged Membership 68 Placing a Port in a Single VLAN 69 VLAN Configuration Examples 70 Using Untagged Connections 70 Using 802.1Q Tagged Connections...
Implementation Guide
Page 6
How Rada Works 82 Auto VLAN Assignment 83 Important Considerations 83 What is Disconnect Unauthorized Device (DUD)? 85 How DUD Works 85 What is RADIUS? 85 11 USING SWITCH CONFIGURATION FEATURES Configuration Save and Restore 87 Upgrading Management Software 89 A CONFIGURATION RULES Configuration ... Rules for Fast Ethernet 94 Configuration Rules with Full Duplex 95 B NETWORK CONFIGURATION EXAMPLES Simple Network Configuration Examples 98 Desktop Switch Example 98 Advanced Network Configuration Examples 99 Improving the Performance and Resilience of Your Network 99 C IP ADDRESSING IP Addresses ...
How Rada Works 82 Auto VLAN Assignment 83 Important Considerations 83 What is Disconnect Unauthorized Device (DUD)? 85 How DUD Works 85 What is RADIUS? 85 11 USING SWITCH CONFIGURATION FEATURES Configuration Save and Restore 87 Upgrading Management Software 89 A CONFIGURATION RULES Configuration ... Rules for Fast Ethernet 94 Configuration Rules with Full Duplex 95 B NETWORK CONFIGURATION EXAMPLES Simple Network Configuration Examples 98 Desktop Switch Example 98 Advanced Network Configuration Examples 99 Improving the Performance and Resilience of Your Network 99 C IP ADDRESSING IP Addresses ...
Implementation Guide
Page 20
...can configure your network according to the Switch. You can segment your Switch to be located anywhere in a network, but which is an industry standard feature for traffic monitoring and collecting network statistics. VLANs A Virtual LAN (VLAN) is a flexible group of broadcast traffic... when a pre-defined threshold is blocked until the broadcast traffic level drops below the threshold. With VLANs, you notification when certain events occur. The Switch software continually collects statistics about the LAN segments connected to : ■ Departmental groups ■ Hierarchical...
...can configure your network according to the Switch. You can segment your Switch to be located anywhere in a network, but which is an industry standard feature for traffic monitoring and collecting network statistics. VLANs A Virtual LAN (VLAN) is a flexible group of broadcast traffic... when a pre-defined threshold is blocked until the broadcast traffic level drops below the threshold. With VLANs, you notification when certain events occur. The Switch software continually collects statistics about the LAN segments connected to : ■ Departmental groups ■ Hierarchical...
Implementation Guide
Page 28
...LACP is the cost assigned for that speed. The aggregated link may be manually configured with appropriate configuration settings, such as VLAN membership, to know which aggregated link is associated with the partner device. If LACP detects at that aggregated link. If you...your network you to the number of a particular partner device (called the partner ID) against the partner device. Link Example Aggregated Link Switch C Switch A Switch B Aggregated Link ■ LACP Pre-Configured Aggregations - As required by simply adding an extra physical link between the units. This ...
...LACP is the cost assigned for that speed. The aggregated link may be manually configured with appropriate configuration settings, such as VLAN membership, to know which aggregated link is associated with the partner device. If LACP detects at that aggregated link. If you...your network you to the number of a particular partner device (called the partner ID) against the partner device. Link Example Aggregated Link Switch C Switch A Switch B Aggregated Link ■ LACP Pre-Configured Aggregations - As required by simply adding an extra physical link between the units. This ...
Implementation Guide
Page 33
.... It is only at these points that multicast packets are replicated and forwarded, which makes efficient use of endstations in a LAN, or VLAN, that carry multicast traffic. It covers the following topics: ■ What is intended for "one copy of networks that belong to a...■ IGMP Multicast Filtering For detailed descriptions of the web interface operations and the command line interface (CLI) commands that accompanies your Switch. thus, multicast transmissions can be distributed across the network until the delivery path that support IP multicast send only one -to an ...
.... It is only at these points that multicast packets are replicated and forwarded, which makes efficient use of endstations in a LAN, or VLAN, that carry multicast traffic. It covers the following topics: ■ What is intended for "one copy of networks that belong to a...■ IGMP Multicast Filtering For detailed descriptions of the web interface operations and the command line interface (CLI) commands that accompanies your Switch. thus, multicast transmissions can be distributed across the network until the delivery path that support IP multicast send only one -to an ...
Implementation Guide
Page 36
...lower than one IP router, then the one with compatible devices on other VLANs, the IP multicast traffic will become the querier. 36 CHAPTER 3: USING MULTICAST FILTERING command will configure the Switch 4200 Series to automatically negotiate with the lowest IP address becomes the querier. ...the IGMP v2 protocol. IGMP Multicast Filtering IGMP is compatible with multicast groups. The Switch 4200 Family is the system that all LANs and VLANs that contain a multicast capable IP router and on VLAN 1 to the If your network has more information about enabling IGMP multicast learning,...
...lower than one IP router, then the one with compatible devices on other VLANs, the IP multicast traffic will become the querier. 36 CHAPTER 3: USING MULTICAST FILTERING command will configure the Switch 4200 Series to automatically negotiate with the lowest IP address becomes the querier. ...the IGMP v2 protocol. IGMP Multicast Filtering IGMP is compatible with multicast groups. The Switch 4200 Family is the system that all LANs and VLANs that contain a multicast capable IP router and on VLAN 1 to the If your network has more information about enabling IGMP multicast learning,...
Implementation Guide
Page 39
...helps protect critical links against failure, protects against network loops, and reduces network downtime to STP" on your Switch. RSTP provides the same functionality as STP. For details on how the two systems differ, see "How... RSTP Differs to a minimum. The following sections explain more about STP and the protocol features supported by the Switch that accompanies your network more resilient to link failure and also provides a protection from loops - 4 USING RESILIENCE...; How STP Works ■ Using STP on a Network with Multiple VLANs one of the major causes of the STP feature.
...helps protect critical links against failure, protects against network loops, and reduces network downtime to STP" on your Switch. RSTP provides the same functionality as STP. For details on how the two systems differ, see "How... RSTP Differs to a minimum. The following sections explain more about STP and the protocol features supported by the Switch that accompanies your network more resilient to link failure and also provides a protection from loops - 4 USING RESILIENCE...; How STP Works ■ Using STP on a Network with Multiple VLANs one of the major causes of the STP feature.
Implementation Guide
Page 48
..., Figure 12 shows a network containing VLANs 1 and 2. They are now subdivided - VLAN 1 on Switch units A and B cannot communicate with VLAN 1 on Switch C, and VLAN 2 on Switch units A and C cannot communicate with Multiple VLANs The IEEE 802.1D standard does not take into account VLANs when it is automatically blocked because the other Switch-to-Switch connections have a path cost of 36...
..., Figure 12 shows a network containing VLANs 1 and 2. They are now subdivided - VLAN 1 on Switch units A and B cannot communicate with VLAN 1 on Switch C, and VLAN 2 on Switch units A and C cannot communicate with Multiple VLANs The IEEE 802.1D standard does not take into account VLANs when it is automatically blocked because the other Switch-to-Switch connections have a path cost of 36...
Implementation Guide
Page 49
... packet. ■ VLAN ID of two ways: ■ The Switch can enter and update entries using the bridge addressDatabase CLI command, the Bridge > Address Database Web Interface operation, or an SNMP Network Manager, for example 3Com Network Supervisor. How Switch Database Entries Get Added... Entries are added to which the packet is the Switch Database? For detailed descriptions of the web interface operations and the command line interface...
... packet. ■ VLAN ID of two ways: ■ The Switch can enter and update entries using the bridge addressDatabase CLI command, the Bridge > Address Database Web Interface operation, or an SNMP Network Manager, for example 3Com Network Supervisor. How Switch Database Entries Get Added... Entries are added to which the packet is the Switch Database? For detailed descriptions of the web interface operations and the command line interface...
Implementation Guide
Page 52
...priority traffic is applied to server farms and other devices for transferring large files. Used by the Switch at layer 3 of increasing priority. How Traffic Prioritization Works Traffic prioritization ensures that high priority data... to large files and spreadsheets. ■ CAD/CAM design applications - Traffic classification is forwarded through the Switch without being delayed by design departments that type of service. The 802.1D standard specifies eight distinct levels ... require predictable and reliable access to carry VLAN identification and user priority information.
...priority traffic is applied to server farms and other devices for transferring large files. Used by the Switch at layer 3 of increasing priority. How Traffic Prioritization Works Traffic prioritization ensures that high priority data... to large files and spreadsheets. ■ CAD/CAM design applications - Traffic classification is forwarded through the Switch without being delayed by design departments that type of service. The 802.1D standard specifies eight distinct levels ... require predictable and reliable access to carry VLAN identification and user priority information.
Implementation Guide
Page 57
...This section explains more about a LAN segment or VLAN, and transfers the information to improve your network efficiency and reduce the load on request or when a pre-defined threshold is crossed. This section describes the four groups supported by the Switch 4200 Family, and details how you can manage the... Switch by the IETF (Internet Engineering Task Force) that you to a management workstation on your...
...This section explains more about a LAN segment or VLAN, and transfers the information to improve your network efficiency and reduce the load on request or when a pre-defined threshold is crossed. This section describes the four groups supported by the Switch 4200 Family, and details how you can manage the... Switch by the IETF (Internet Engineering Task Force) that you to a management workstation on your...
Implementation Guide
Page 59
... network management involves a management workstation polling network devices at one workstation and collect information from widely dispersed LAN segments or VLANs. In addition, probes record the behavior of your network, so that you can deliver information before they affect users. RMON reports ...sizes and traffic levels grow, this approach places a strain on the management workstation and also generates large amounts of traffic. RMON and the Switch The RMON support provided by exception, which means that the time taken to reach a problem site, set up equipment, and begin collecting...
... network management involves a management workstation polling network devices at one workstation and collect information from widely dispersed LAN segments or VLANs. In addition, probes record the behavior of your network, so that you can deliver information before they affect users. RMON reports ...sizes and traffic levels grow, this approach places a strain on the management workstation and also generates large amounts of traffic. RMON and the Switch The RMON support provided by exception, which means that the time taken to reach a problem site, set up equipment, and begin collecting...
Implementation Guide
Page 65
...refer to : ■ Departmental groups - This chapter explains more about the concept of VLANs and explains how they are VLANs? ■ Benefits of VLANs ■ VLANs and Your Switch ■ VLAN Configuration Examples For detailed descriptions of devices that accompanies your network. a limitation of multimedia... Reference Guide supplied in a network, but which communicate as if they can have one VLAN for users of your Switch. For example, you can have one VLAN for directors, another for managers, and another for the Development department. ■ Hierarchical groups...
...refer to : ■ Departmental groups - This chapter explains more about the concept of VLANs and explains how they are VLANs? ■ Benefits of VLANs ■ VLANs and Your Switch ■ VLAN Configuration Examples For detailed descriptions of devices that accompanies your network. a limitation of multimedia... Reference Guide supplied in a network, but which communicate as if they can have one VLAN for users of your Switch. For example, you can have one VLAN for directors, another for managers, and another for the Development department. ■ Hierarchical groups...
Implementation Guide
Page 66
...port is far more flexible than any re-cabling. ■ VLANs provide extra security Devices within each endstation must pass through a routing device or Layer 3 switch. If users move to specify that is in VLAN Marketing. If a device in VLAN Marketing needs to a port in another part of the network..., and retains its original subnet membership, you with three other benefits: ■ VLANs ease the movement of devices on ...
...port is far more flexible than any re-cabling. ■ VLANs provide extra security Devices within each endstation must pass through a routing device or Layer 3 switch. If users move to specify that is in VLAN Marketing. If a device in VLAN Marketing needs to a port in another part of the network..., and retains its original subnet membership, you with three other benefits: ■ VLANs ease the movement of devices on ...
Implementation Guide
Page 67
... - This is directed to all connected to a routing or Layer 3 switching device. Communication Between VLANs If the devices placed in a VLAN need to communicate with each other. The Default VLAN A new or initialized Switch contains a single VLAN, the Default VLAN. VLANs and Your Switch 67 ■ VLANs help to control traffic With traditional networks, congestion can be set up to...
... - This is directed to all connected to a routing or Layer 3 switching device. Communication Between VLANs If the devices placed in a VLAN need to communicate with each other. The Default VLAN A new or initialized Switch contains a single VLAN, the Default VLAN. VLANs and Your Switch 67 ■ VLANs help to control traffic With traditional networks, congestion can be set up to...
Implementation Guide
Page 68
... but if the port needs to be a member of multiple VLANs tagged membership must be carried on your Switch. Typically endstations (for multiple VLANs to be defined. VLANs: Tagged and Untagged Membership Your Switch supports 802.1Q VLAN tagging, a system that allows traffic for example, clients or ...servers) will be untagged members of one VLAN, while inter-Switch connections will be tagged with a VLAN identifier so that allows a switch to determine to which VLAN the port belongs. When setting up VLANs you must be tagged members of all VLANs. Quite simply, if a port is known ...
... but if the port needs to be a member of multiple VLANs tagged membership must be carried on your Switch. Typically endstations (for multiple VLANs to be defined. VLANs: Tagged and Untagged Membership Your Switch supports 802.1Q VLAN tagging, a system that allows traffic for example, clients or ...servers) will be untagged members of one VLAN, while inter-Switch connections will be tagged with a VLAN identifier so that allows a switch to determine to which VLAN the port belongs. When setting up VLANs you must be tagged members of all VLANs. Quite simply, if a port is known ...
Implementation Guide
Page 69
...allows a link to carry traffic for a new VLAN has been defined, you can only be used if the devices at the other end of the same VLANs as your Switch, that VLAN IDs are global across the network). 2 Place the Switch ports in the required VLANs as tagged members. 3 Place the port at... both ends of the VLANs defined on your Switch. 802.1Q tagging can place a Single VLAN port in a Once the information ...
...allows a link to carry traffic for a new VLAN has been defined, you can only be used if the devices at the other end of the same VLANs as your Switch, that VLAN IDs are global across the network). 2 Place the Switch ports in the required VLANs as tagged members. 3 Place the port at... both ends of the VLANs defined on your Switch. 802.1Q tagging can place a Single VLAN port in a Once the information ...
Implementation Guide
Page 70
... configuration shown in Figure 17: 1 Configure the VLANs Create VLAN 2 on the Switch. 70 CHAPTER 8: SETTING UP VIRTUAL LANS VLAN Configuration Examples This section contains examples of the Switch belong to VLAN 1, ports 10, 11 and 12 belong to endstations and servers using a single switch. VLAN 1 is handled by the single Switch and therefore untagged connections can be used.
... configuration shown in Figure 17: 1 Configure the VLANs Create VLAN 2 on the Switch. 70 CHAPTER 8: SETTING UP VIRTUAL LANS VLAN Configuration Examples This section contains examples of the Switch belong to VLAN 1, ports 10, 11 and 12 belong to endstations and servers using a single switch. VLAN 1 is handled by the single Switch and therefore untagged connections can be used.